SMX-QS1 SMD Watch Crystal Features Applications: telecommunications, audio, medical Low profile metal package Reliable, low cost crystal Reflow soldering @ 260 °C Parameter Specification Nominal frequency 32.768 kHz Frequency tolerance Frequency stability vs. temperature ±20 ppm @ +25 °C ±100 ppm over -20 ~ +70 °C ±150 ppm over -40 ~ +85 °C ±3 ppm 1st year parallel resonance (CL = 8 ~ 12.5 pF) Aging Load capacitance Series resistance Motional capacitance Shunt capacitance 65 kΩ 2.1 fF 0.9 pF Max. Typ. Typ. Drive level 0.1 μW Typical < 0.5 μW Turnover temperature ±5 °C Storage temperature range +25 °C -0.035 x (T-To)2 ppm/°C2 -20 ~ +70 °C -40 ~ +85 °C -55 ~ +125 °C Packaging unit tape & reel Temperature coefficient Operating temperature range commercial application industrial application 1’000, 3’000 or 9’000 pieces Customer specifications on request Example for soldering pattern Do not design any conductive path between the pattern Example for IR reflow soldering temperature 2002/95/EC RoHS compliant QuartzCom AG [email protected] www.quartzcom.com QuartzCom Asia [email protected] QuartzCom USA [email protected] 03 May. 10